zarzycki
New Member
Sorry for the newbie-ish question, but figured this was easier than trying to e-mail multiple people.
I am working with a student interested in testing the spatial heterogeneity of surface aerosol concentrations as a function of model resolution. We can do a suite of simulations at varying horizontal resolutions with the standard 2.5x2.5 deg emission files for an F_2000_CAM5 compset.
However, we'd also like to isolate the sensitivity which arises from using higher-resolution emissions. I should have access to at least 1x1deg gridded emissions data, and perhaps 0.5x0.5deg.
A few questions:
- I presume the emissions are interpolated to the target atmospheric grid (in particular, I am using CAM-SE). Is this interpolation conservative or just bilinear?
- Is there any special format required for emission files outside of what is in the default repository? (ex: /glade/p/cesmdata/cseg/inputdata/atm/cam/chem/trop_mozart_aero/emis/ar5_mam3_bc_surf_1850-2005_c090804.nc). My original strategy is to just have this student generate a new dataset which matches the format of the aforementioned file except with different lat/lon. But any info for any requirements would be helpful.
- There are multiple "sectors" in some emission files (ex: in the BC file, there is energy, wildfires, etc.). Does CAM handle these sectors in any specific manner or is their demarcation bookkeeping? (i.e., surface_emis(i,j) = emis_wild(i,j) + emis_engy(i,j) ...). If we were to just have one sector for "total" emissions, would that behave the same?
Thanks in advance for any help!
I am working with a student interested in testing the spatial heterogeneity of surface aerosol concentrations as a function of model resolution. We can do a suite of simulations at varying horizontal resolutions with the standard 2.5x2.5 deg emission files for an F_2000_CAM5 compset.
However, we'd also like to isolate the sensitivity which arises from using higher-resolution emissions. I should have access to at least 1x1deg gridded emissions data, and perhaps 0.5x0.5deg.
A few questions:
- I presume the emissions are interpolated to the target atmospheric grid (in particular, I am using CAM-SE). Is this interpolation conservative or just bilinear?
- Is there any special format required for emission files outside of what is in the default repository? (ex: /glade/p/cesmdata/cseg/inputdata/atm/cam/chem/trop_mozart_aero/emis/ar5_mam3_bc_surf_1850-2005_c090804.nc). My original strategy is to just have this student generate a new dataset which matches the format of the aforementioned file except with different lat/lon. But any info for any requirements would be helpful.
- There are multiple "sectors" in some emission files (ex: in the BC file, there is energy, wildfires, etc.). Does CAM handle these sectors in any specific manner or is their demarcation bookkeeping? (i.e., surface_emis(i,j) = emis_wild(i,j) + emis_engy(i,j) ...). If we were to just have one sector for "total" emissions, would that behave the same?
Thanks in advance for any help!